https://phys.org/news/2017-04-caterpillar-bags-biodegradable...
>To confirm it wasn't just the chewing mechanism of the caterpillars degrading the plastic, the team mashed up some of the worms and smeared them on polyethylene bags, with similar results
Scientist 2: well how about we anaestetise the caterpillar and use a microfilament to extract the gut contents, then we can ...
Scientist 1: <splat>
Specialty devices exist, but a standard high-speed desktop centrifuge can also be used, as a mouse will generally fit into a 50 mL centrifuge tube.
Generally best not to think about it too much if you like animals, but also like biochemical sciences. But if you're after a specific enzyme that would not be destroyed by rupture of the cell wall, whole-animal sacrifice by centrifuge is the cheap and easy way to get at it.